CVE-2017-5856 Denial of service in n/a

What is CVE-2017-5856?

CVE-2017-5856 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 16 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Memory leak in the megasas_handle_dcmd function in hw/scsi/megasas.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) via MegaRAID Firmware Interface (MFI) commands with the sglist size set to a value over 2 Gb.

Weakness: CWE-401

Which versions are affected by CVE-2017-5856?

It affects 2 products.

Products include Debian Debian Linux, Qemu Qemu.

How do I fix CVE-2017-5856?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2017-5856 being exploited?

There is no known exploitation of CVE-2017-5856 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2017-5856, DEBIAN-CVE-2017-5856, GHSA-3x3m-4c79-cmv9, UBUNTU-CVE-2017-5856.